{"id":206377,"date":"2025-03-29T06:13:23","date_gmt":"2025-03-29T06:13:23","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=206377"},"modified":"2025-03-29T06:13:25","modified_gmt":"2025-03-29T06:13:25","slug":"potassium-ion-k-has-the-same-electronic-configuration-as-that-of-which-noble-gases-mentioned-below","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/29\/potassium-ion-k-has-the-same-electronic-configuration-as-that-of-which-noble-gases-mentioned-below\/","title":{"rendered":"Potassium Ion K+ has the same electronic configuration as that of which noble gases mentioned below"},"content":{"rendered":"\n<p>Potassium Ion K+ has the same electronic configuration as that of which noble gases mentioned below?<\/p>\n\n\n\n<p>a) Krypton<br>b) Xenon<br>c) Argon<br>d) Radon<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is:<\/p>\n\n\n\n<p><strong>c) Argon<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The electronic configuration of an atom describes the distribution of its electrons in various energy levels (shells and subshells). The potassium (K) atom has an atomic number of <strong>19<\/strong>, meaning it has 19 electrons. The electronic configuration of a neutral potassium atom is:<\/p>\n\n\n\n<p><strong>K (19):<\/strong> 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b9<\/p>\n\n\n\n<p>When potassium loses one electron to form the <strong>K\u207a ion<\/strong>, it loses the single electron in the <strong>4s orbital<\/strong>. The new configuration of K\u207a is:<\/p>\n\n\n\n<p><strong>K\u207a (18):<\/strong> 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076<\/p>\n\n\n\n<p>This is exactly the same as the electron configuration of <strong>Argon (Ar)<\/strong>, which has an atomic number of <strong>18<\/strong>:<\/p>\n\n\n\n<p><strong>Ar (18):<\/strong> 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076<\/p>\n\n\n\n<p>Since noble gases have completely filled outer electron shells, they are highly stable. When K loses an electron to become K\u207a, it attains the stable noble gas configuration of Argon.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Why not the other noble gases?<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Krypton (Kr, 36)<\/strong> has an electron configuration of 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 3d\u00b9\u2070 4s\u00b2 4p\u2076. It has 36 electrons, far more than K\u207a.<\/li>\n\n\n\n<li><strong>Xenon (Xe, 54)<\/strong> and <strong>Radon (Rn, 86)<\/strong> also have much higher electron counts.<\/li>\n<\/ul>\n\n\n\n<p>Thus, <strong>K\u207a has the same electronic configuration as Argon (Ar), making option (c) the correct answer.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/03\/image-1600.png\" alt=\"\" class=\"wp-image-206378\"\/><\/figure>\n\n\n\n<p>Here is the image representing the question, created using DALL\u00b7E. It visually illustrates the potassium ion (K\u207a) and its electron configuration, showing how it matches that of argon (Ar). <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Potassium Ion K+ has the same electronic configuration as that of which noble gases mentioned below? a) Kryptonb) Xenonc) Argond) Radon The correct answer and explanation is : The correct answer is: c) Argon Explanation: The electronic configuration of an atom describes the distribution of its electrons in various energy levels (shells and subshells). The [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-206377","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/206377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=206377"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/206377\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=206377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=206377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=206377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}